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J
'.J
I
.
v
P/O TRNS229A
TRNS867A
TRNS66SA
RSla
F
:JOCOO-O
'.SAOI
Figure4.
TRITON 12and 24 ChannelMain Circuit Board
Modifications
CATHODE OF CR41'
«RANGE
11
CATHODE OF CR41T
,(RAHGE
Z)
CRS19
"""20
PIO IIAHOSWITCHIHG
1
CATHOOE
OF C114t.
((RANGE
31
CIRCUITRY SECTION
ON
AWN BOORD""
CATIiOOE OF Cll419
«(RANGE 41
CATItODE
OF C114ZO ,(lUNGE
5)
"""21
CIISn
""SD
CATHOD£ OF VR42S
.d!'OD':5AOLE)
1tS1.
-
100
G£PS-3000.-o
Figure 5.
TRITON 12 and 24 Channel Main Circuit Board
Schematic Diagram Modifications
Step 3.
In
the
instruction
manual,
locate
the
TRN6227A; TRN6429A,
or TRN6430A
Transmit!
Receive Switch circuit board overlay and schematic
diagram.
Step 4.
Remove resistor R24 (220 ohm) from the cir-
cuit board and lay it aside. It will not be used.
Step 5.
Select the components (CR9 and R24) listed in
Table 2, and install the diode and resistor as illustrated
in Figure 6.
09
as
P/O
TRN6227A
TRN6429A
TRN6430A
.- ..'0"" .
RIS
R24
CR9
""'-30011-0
..r.<o,
CR4
Figure6.
TRITON 12and 24 ChannelSmall CircuitBoard
Modifications
.) (PO.DI:5A8LE1 ""9 11
024
-;;0
(PO<'_BlT'(T
Q9
M9642
CRT
BEPS->OOIO-O
Figure 7.
TRITON 12 and 24 Channel Small Circuit Board
Schematic Diagram Modifications
3.
INSTALLATION INSTRUCTIONS
3.1
GENERAL
The procedure for a good installation is essentially
the same for either the Model Tl961A or Model T1962A
Antenna Tuner. If the Model T1961A Antenna Tuner is
employed, antennas of the end-fed variety of a 23-foot
whip or up to a 6O-foot long wire may be used with a
frequency range from 2 to 18 MHz. If the Model
T1962A Antenna Tuner is employed, its use is limited to
a 23-foot whip antenna with a frequency range from 2
to 9 MHz. The antenna should be installed as close as
possible or within a maximum of 3 feet of the tuner. The
ground system should be as close as possible or within a
maximum of 5 feet of the tuner.
3
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